Postfix question

[Jerry Feldman]

One of the listserv aliases is getting hit by a mail loop. The email is 
being sent to <list>-admin, which is aliased to the list owner. I have 
added it to the postfix access.db:
attib.com                               500 spam not wanted
netmedia at attib.com                      500 spam not wanted
nminc.net                               500 spam not wanted

Apparently, this is not doing anything.  
I can certainly filter it out on my email client at work and procmail on my 
home server, but I would like to be able to block the entire domain before 
it is sent out. 
--
Jerry Feldman <gaf at blu.org>
Associate Director
Boston Linux and Unix user group
http://www.blu.org PGP key id:C5061EA9
PGP Key fingerprint:053C 73EC 3AC1 5C44 3E14 9245 FB00 3ED5 C506 1EA9